Who attempted to restructure the soviet union's economy through his policy of perestroika?
a. vladimir ilyich lenin
c. mikhail gorbachev
b. joseph stalin
d. boris yeltsin

At a trade meeting, country a and country b, which are trade partners, agree to remove trade barriers to stimulate economic growth. they sign agreement stating that tariffs on all goods will be removed. some groups in country b protest the agreement because they think it will lead to excessive in some industries, which will threaten companies and jobs.